Open Access

Apoptosis of CD19+ chimeric antigen receptor T cells after treatment with chemotherapeutic agents

  • Authors:
    • Wenfang Yi
    • Fuyu Pei
    • Wen Ding
    • Mo Yang
    • Guang Lin
    • Cheng Zhang
    • Xuedong Wu
    • Yuelin He
    • Xiaoqin Feng
    • Huanying Liu
    • Zhiyong Peng
    • Chunfu Li
  • View Affiliations

  • Published online on: May 2, 2018     https://doi.org/10.3892/mmr.2018.8943
  • Copyright: © Yi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The use of chemotherapeutic agents prior to treatment with infusion of cluster of differentiation (CD)19-chimeric antigen receptor (CAR)‑T cells is important for the efficacy of clinical therapies against hematological malignancies. However, the effect of chemotherapeutic agents on CD19‑CAR‑T cells and the associated underlying mechanisms remain unknown. The first aim of the present study was to determine the effect of chemotherapeutic agents on CAR‑T cells using the in vitro Cell Counting kit 8 assay. The second aim was to evaluate the abilities of fludarabine (FDR) and mafosfamide (MFA; a metabolite of cyclophosphamide) to induce apoptosis of CD19‑CAR‑T cells via the use of Annexin V/propidium iodide double staining. In addition, a JC‑1 fluorescent probe was used to detect alterations in cell membrane potential, and flow cytometry analysis was used to measure concentrations of caspase‑3/7 to identify apoptotic pathways of CD19‑CAR‑T cells. The data of the present study suggested that FDR and MFA inhibit the activities of CD19‑CAR‑T cells. Alterations to the mitochondrial membrane potential and an increase in the concentration of caspase‑3/7 indicated early apoptosis of FDR‑ and MFA‑treated CD19‑CAR‑T cells. The present study laid a theoretical foundation for the development of programs for clinical treatment.

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APA
Yi, W., Pei, F., Ding, W., Yang, M., Lin, G., Zhang, C. ... Li, C. (1899). Apoptosis of CD19+ chimeric antigen receptor T cells after treatment with chemotherapeutic agents. Molecular Medicine Reports, 0, 0-0. https://doi.org/10.3892/mmr.2018.8943
MLA
Yi, W., Pei, F., Ding, W., Yang, M., Lin, G., Zhang, C., Wu, X., He, Y., Feng, X., Liu, H., Peng, Z., Li, C."Apoptosis of CD19+ chimeric antigen receptor T cells after treatment with chemotherapeutic agents". Molecular Medicine Reports 0.0 (1899): 0-0.
Chicago
Yi, W., Pei, F., Ding, W., Yang, M., Lin, G., Zhang, C., Wu, X., He, Y., Feng, X., Liu, H., Peng, Z., Li, C."Apoptosis of CD19+ chimeric antigen receptor T cells after treatment with chemotherapeutic agents". Molecular Medicine Reports 0, no. 0 (1899): 0-0. https://doi.org/10.3892/mmr.2018.8943